wxr_term_meta( WP_Term $term )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$termWP_Term

Term object.

Performance profile

How much work a call to wxr_term_meta() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via ->get_results().

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

19–20

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 45.

Plugin surface

1 hook

Third-party callbacks on 'wxr_export_skip_termmeta' run inside this call, and their cost is not bounded by anything here.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()called directly
• sqldatabase query->get_results()called directly

Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost wxr_term_meta() can have, taken from its control-flow graph on PHP 8.5.

Hooks and filters fired · 1

One hook fires while wxr_term_meta() runs, in this order:

1. 1
   apply_filters( wxr_export_skip_termmeta )filterline 391 (+18 into the body)

   Filters whether to selectively skip term meta used for WXR exports.

Uses · 2

• apply_filters()Calls the callback functions that have been added to a filter hook.
• wxr_cdata()Wraps given string in XML CDATA tag.

Used by · 1

• export_wp()Generates the WXR export file for download.

Source code

View on Trac ↗View on GitHub ↗

373	function wxr_term_meta( $term ) {374		global $wpdb;375 376		$termmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->termmeta WHERE term_id = %d", $term->term_id ) );377 378		foreach ( $termmeta as $meta ) {379			/**380			 * Filters whether to selectively skip term meta used for WXR exports.381			 *382			 * Returning a truthy value from the filter will skip the current meta383			 * object from being exported.384			 *385			 * @since 4.6.0386			 *387			 * @param bool   $skip     Whether to skip the current piece of term meta. Default false.388			 * @param string $meta_key Current meta key.389			 * @param object $meta     Current meta object.390			 */391			if ( ! apply_filters( 'wxr_export_skip_termmeta', false, $meta->meta_key, $meta ) ) {392				printf( "\t\t<wp:termmeta>\n\t\t\t<wp:meta_key>%s</wp:meta_key>\n\t\t\t<wp:meta_value>%s</wp:meta_value>\n\t\t</wp:termmeta>\n", wxr_cdata( $meta->meta_key ), wxr_cdata( $meta->meta_value ) );393			}394		}395	}

Changelog

Introduced in 4.6.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.0.4 tag, from src/wp-admin/includes/export.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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